Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)

doi:10.1071/BT09190

KIB OpenIR > 离退休

	Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)
	Gao, Zerui 1,2; Zhang, Changqin 1; Milne, Richard I.3,4
通讯作者	zhangchangqin@mail.kib.ac.cn
	2010
发表期刊	AUSTRALIAN JOURNAL OF BOTANY
ISSN	0067-1924
卷号	58 期号:3 页码:214-223
摘要	Craigia yunnanensis W. W. Sm. & W. E. Evans is an endangered canopy tree species distributed in southern China and northern Vietnam. We located and surveyed six remnant populations, all from subtropical areas of Yunnan, China. These six populations contained between 6 and 167 adult trees in 2007, plus larger numbers of seedlings and resprouts from cut trunks. Bulk seed samples were collected from these populations and examined for 10 fitness traits (e.g. seed number, seed length, width and 1000-seed weight, germination in the controlled light and darkness conditions and nursery, seedling height, root collar diameter and dry weight). All traits differed significantly among populations, but only number of seeds per capsule was significantly correlated with population size. For some populations, germination capacity in light was significantly higher than that in darkness, indicating that canopy removal might promote regeneration from seed. Examination of population size-class structures in four C. yunnanesis populations determined that small seedlings and resprouts are abundant, although very few of these reach even the sapling stage. Hence, the remaining populations could be expanded and conserved by allowing a proportion of seedlings and resprouts to reach maturity. However, ex situ conservation, informed by data from the present study, is also advisable in case the remaining wild populations are lost.
学科领域	Plant Sciences
DOI	10.1071/BT09190
收录类别	SCI
语种	英语
WOS记录号	WOS:000277302900007
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/13523
专题	离退休
作者单位	1.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Univ Edinburgh, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland 4.Royal Bot Garden Edinburgh, Edinburgh EH3 5LR, Midlothian, Scotland
推荐引用方式 GB/T 7714	Gao, Zerui,Zhang, Changqin,Milne, Richard I.. Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)[J]. AUSTRALIAN JOURNAL OF BOTANY,2010,58(3):214-223.
APA	Gao, Zerui,Zhang, Changqin,&Milne, Richard I..(2010).Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae).AUSTRALIAN JOURNAL OF BOTANY,58(3),214-223.
MLA	Gao, Zerui,et al."Size-class structure and variation in seed and seedling traits in relation to population size of an endangered species Craigia yunnanensis (Tiliaceae)".AUSTRALIAN JOURNAL OF BOTANY 58.3(2010):214-223.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
BT09190.pdf（331KB）			开放获取	--	浏览下载